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Product Specifications .................................................................................................................................. 1

Introduction ................................................................................................................................................... 2

Rules for Safe Operaton ............................................................................................................................ 3-5

Symbols ........................................................................................................................................................ 6

Electrical and Unpacking .............................................................................................................................. 7

Features ........................................................................................................................................................ 8

Assembly....................................................................................................................................................... 9

Adjustments ................................................................................................................................................ 10

Operation ............................................................................................................................................... 10-11

Maintenance .......................................................................................................................................... 12-13

Parts Ordering / Service .............................................................................................................................. 14

TABLE OF CONTENTS

WARNING:

Always use the guard that accompanied the grinder. Comply with mounting and use instructions and warnings found in
the manual for the grinder and ANSI B7.1. Failure to heed these warnings can result in wheel breakage and serious
personal injury. For more information on ANSI Standards, contact the American National Standards Institute, Inc., 11 West
42nd Street, 13th Floor, New York, NY 10036.

The operation of any angle grinder can result in foreign objects being thrown into your eyes,
which can result in severe eye damage. Before beginning power tool operation, always wear
safety goggles or safety glasses with side shields and a full face shield when needed. We
recommend Wide Vision Safety Mask for use over eyeglasses or standard safety glasses with
side shields. Always wear eye protection which is marked to comply with ANSI Z87.1.

GLASSES

SAFETY

WEAR YOUR

FORESIGHT IS BETTER

THAN NO SIGHT

WARNING:

WARNING:

The double insulated system is intended to protect the
user from shock resulting from a break in the tool's
internal wiring. Observe all normal safety precautions
related to avoiding electrical shock.

DOUBLE INSULATION

Your Ryobi power tool is double insulated. This means you
are separated from the tool's electrical system by two complete
sets of electrical insulation. This extra layer of insulation is
intended to protect the user from electrical shock due to a
break in the wiring insulation. All exposed metal parts are
isolated from the internal metal motor components with
protecting insulation. Double insulated tools do not need to
be grounded.

IMPORTANT

Servicing of a tool with double insulation requires extreme
care and knowledge of the system and should be performed
only by a qualified service technician. For service we suggest
you return the tool to your nearest 

RYOBI AUTHORIZED

SERVICE CENTER

  for repair. When servicing use only

identical Ryobi replacement parts.

WARNING:

Do not attempt to operate this tool until you have read
thoroughly and understand completely all instructions,
safety rules, etc. contained in this manual. Failure to
comply can result in accidents involving fire, electric
shock, or serious personal injury. Save operator's manual
and review frequently for continuing safe operation, and
instructing others who may use this tool.

INTRODUCTION

Summary of Contents for AG401

Page 1: ...CAUTION Carefully read through this entire operator s manual before using your new angle grinder Pay close attention to the Rules for Safe Operation Warnings and Cautions If you use your grinder prop...

Page 2: ...uble insulated system is intended to protect the user from shock resulting from a break in the tool s internal wiring Observe all normal safety precautions related to avoiding electrical shock DOUBLE...

Page 3: ...for misalignment or binding of moving parts breakage of parts and any other condi tion that may affect the tool s operation If dam aged have the tool serviced before using Many accidents are caused b...

Page 4: ...mmended If in doubt use the next heavier gage The smaller the gage number the heavier the cord An undersized cord will cause a drop in line voltage resulting in loss of power and overheating Use only...

Page 5: ...nstruction activities contains chemicals known to cause cancer birth defects or other reproductive harm Some examples of these chemicals are lead from lead based paints crystalline silica from bricks...

Page 6: ...your attention to possible dangers The safety symbols and the explanations with them deserve your careful attention and understanding The safety warnings do not by themselves eliminate any danger The...

Page 7: ...is 120 volts 60Hz AC only normal household current Do not operate this tool on direct current DC A substantial voltage drop will cause a loss of power and the motor will overheat If your tool does not...

Page 8: ...be used during all grinding operations In addition to maintaining safe control during use the side handle also provides convenient ease of operation for the operator Spindle Lock Button The spindle l...

Page 9: ...ock button and rotate clamp nut until spindle locks Loosen and remove clamp nut from spindle Do not remove disc flange Make sure flats on the bottom of disc flange are engaged with flats on spindle Pl...

Page 10: ...sparks and loose particles thrown from the grinding wheel would be directed toward the operator Always place the guard in the correct location as shown in figures 4 and 5 WARNING Always wear safety g...

Page 11: ...on the rear portion of the button Button will then disengage from the locked position GRINDING See Figure 8 Always carefully select and use grinding wheels that are recommended for the material to be...

Page 12: ...r loosen the clamp screw until the guard can be adjusted or removed If you are making adjustments rotate the guard to its correct position as shown in figures 4 5 and 9 then retighten clamp screw secu...

Page 13: ...ve dirt carbon dust etc WARNING Do not at any time let brake fluids gasoline petroleum based products penetrating oils etc come in contact with plastic parts They contain chemicals that can damage wea...

Page 14: ...r exposed wires and cut or worn insulation Ampere rating on tool data plate 0 2 0 2 1 3 4 3 5 5 0 5 1 7 0 7 1 12 0 12 1 16 0 Cord Length Wire Size A W G 25 16 16 16 16 14 14 50 16 16 16 14 14 12 100 1...

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